program testmdiok;//项目文件uses
Forms,
testmdi in 'testmdi.pas' {father},
testmdibb in 'testmdibb.pas' {zb1},
mediap in 'mediap.pas' {media},
login in 'login.pas' {Form1},
mbglp in 'mbglp.pas' {mbgl};{$R *.res} var
zb1:Tzb1;begin
Application.Initialize;
//调用显示登陆窗口
zb1:=tzb1.create(application);
zb1.showmodal;
//退出程序
if zb1.ShowModal <> mrok then
begin
zb1.Free ; //释放资源
zb1:=nil;
Application.Terminate ;//退出程序
Exit ;
end;
Application.CreateForm(tfather,father); Application.Run;
end.//zb窗体文件
procedure Tzb1.btloginClick(Sender: TObject);
Self.ModalResult :=mrOk ;
Forms,
testmdi in 'testmdi.pas' {father},
testmdibb in 'testmdibb.pas' {zb1},
mediap in 'mediap.pas' {media},
login in 'login.pas' {Form1},
mbglp in 'mbglp.pas' {mbgl};{$R *.res} var
zb1:Tzb1;begin
Application.Initialize;
//调用显示登陆窗口
zb1:=tzb1.create(application);
zb1.showmodal;
//退出程序
if zb1.ShowModal <> mrok then
begin
zb1.Free ; //释放资源
zb1:=nil;
Application.Terminate ;//退出程序
Exit ;
end;
Application.CreateForm(tfather,father); Application.Run;
end.//zb窗体文件
procedure Tzb1.btloginClick(Sender: TObject);
Self.ModalResult :=mrOk ;
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begin
ModalResult :=mrOk ;
end;
现列一个简单的程序如下:
//项目文件
program Project2;uses
Forms,
Unit1 in 'Unit1.pas' {Form1},
Unit2 in 'Unit2.pas' {Form2};{$R *.res}
var
form2:tform2;
begin
Application.Initialize;
form2:=Tform2.Create (application);
form2.showmodal;
if form2.modalresult <> mrok then
form2.free;
form2:=nil; Application.CreateForm(TForm1, Form1);
Application.Run;
end.
//modal 窗体
unit Unit2;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm2 = class(TForm)
btn1: TButton;
btn2: TButton;
procedure btn1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations } end;
implementation{$R *.dfm}procedure TForm2.btn1Click(Sender: TObject);
begin
Self.ModalResult :=mrOk;
end;程序在运行时提示我:项目文件中的mrok没被定义。